TY - JOUR AU - Tsvetkova, T.A. PY - 2015/02/01 Y2 - 2024/03/29 TI - Two approaches to the problem of ray seismic tomography JF - Geofizicheskiy Zhurnal JA - GJ VL - 37 IS - 1 SE - Articles DO - 10.24028/gzh.0203-3100.v37i1.2015.111330 UR - https://journals.uran.ua/geofizicheskiy/article/view/111330 SP - 121-133 AB - <p>Approximation of nonlinear geophysical medium as a linear one substantiates a transition to geometrical seismics based on geometric optics. Conditions, necessary and sufficient for application of geometrical optics bring possibility of linearization  the eikonal equation and produce two approaches in the problems of seismic tomography: a classical Lavrentyev— Romanov linearization  and the Taylor approximation.</p> ER -